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[legacy] Fixed incorrect test in new png_push_save_buffer() code.

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This commit is contained in:
Glenn Randers-Pehrson 2010-02-07 19:56:19 -06:00
parent bc4873c665
commit 6328fc1321
3 changed files with 30 additions and 22 deletions
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39
ANNOUNCE
View File

@ -1,5 +1,5 @@
Libpng 1.2.43beta03 - February 7, 2010
Libpng 1.2.43beta04 - February 8, 2010
This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version.
@ -9,36 +9,36 @@ Files available for download:
Source files with LF line endings (for Unix/Linux) and with a
"configure" script
libpng-1.2.43beta03.tar.xz (LZMA-compressed, recommended)
libpng-1.2.43beta03.tar.gz
libpng-1.2.43beta03.tar.bz2
libpng-1.2.43beta04.tar.xz (LZMA-compressed, recommended)
libpng-1.2.43beta04.tar.gz
libpng-1.2.43beta04.tar.bz2
Source files with LF line endings (for Unix/Linux) without the
"configure" script
libpng-1.2.43beta03-no-config.tar.xz (LZMA-compressed, recommended)
libpng-1.2.43beta03-no-config.tar.gz
libpng-1.2.43beta03-no-config.tar.bz2
libpng-1.2.43beta04-no-config.tar.xz (LZMA-compressed, recommended)
libpng-1.2.43beta04-no-config.tar.gz
libpng-1.2.43beta04-no-config.tar.bz2
Source files with CRLF line endings (for Windows), without the
"configure" script
lp1243b03.zip
lp1243b03.7z
lp1243b03.tar.bz2
lp1243b04.zip
lp1243b04.7z
lp1243b04.tar.bz2
Project files
libpng-1.2.43beta03-project-netware.zip
libpng-1.2.43beta03-project-wince.zip
libpng-1.2.43beta04-project-netware.zip
libpng-1.2.43beta04-project-wince.zip
Other information:
libpng-1.2.43beta03-README.txt
libpng-1.2.43beta03-KNOWNBUGS.txt
libpng-1.2.43beta03-LICENSE.txt
libpng-1.2.43beta03-Y2K-compliance.txt
libpng-1.2.43beta03-[previous version]-diff.txt
libpng-1.2.43beta04-README.txt
libpng-1.2.43beta04-KNOWNBUGS.txt
libpng-1.2.43beta04-LICENSE.txt
libpng-1.2.43beta04-Y2K-compliance.txt
libpng-1.2.43beta04-[previous version]-diff.txt
Changes since the last public release (1.2.42):
@ -57,7 +57,10 @@ version 1.2.43beta02 [February 1, 2010]
version 1.2.43beta03 [February 6, 2010]
Backported fast png_push_save_buffer() algorithm from libpng-1.4.1
version 1.0.53rc01 and 1.2.43rc01 [February 7, 2010]
version 1.2.43beta04 [February 7, 2010]
Fixed incorrect test in new png_push_save_buffer() code.
version 1.0.53rc01 and 1.2.43rc01 [February 8, 2010]
No changes.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net

5
CHANGES
View File

@ -2659,7 +2659,10 @@ version 1.2.43beta03 [February 6, 2010]
Backported fast png_push_save_buffer() algorithm from libpng-1.4.1.
Backported some cosmetic changes from libpng-1.4.1.
version 1.0.53rc01 and 1.2.43rc01 [February 7, 2010]
version 1.2.43beta04 [February 7, 2010]
Fixed incorrect test in new png_push_save_buffer() code.
version 1.0.53rc01 and 1.2.43rc01 [February 8, 2010]
No changes.
Send comments/corrections/commendations to png-mng-implement at lists.sf.net

8
pngpread.c
View File

@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.2.43 [February 7, 2010]
* Last changed in libpng 1.2.43 [February 8, 2010]
* Copyright (c) 1998-2010 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@ -694,8 +694,10 @@ png_push_save_buffer(png_structp png_ptr)
png_size_t new_max;
png_bytep old_buffer;
if (png_ptr->save_buffer_size == PNG_SIZE_MAX)
png_error(png_ptr, "Overflow of save_buffer");
if (png_ptr->save_buffer_max == PNG_SIZE_MAX ||
(png_ptr->save_buffer_size > PNG_SIZE_MAX -
png_ptr->current_buffer_size))
png_error(png_ptr, "Overflow of save_buffer");
if (png_ptr->save_buffer_size > PNG_SIZE_MAX -
(png_ptr->current_buffer_size +